Pheromones are a naturally occurring chemical compound found in all insects, animals, and
humans. When pheromones are secreted they dictate sexual behavior and attract the opposite
sex.
Pheromones is Greek from the word Pheran-to transfer and Horman- to excite. Pheromones are
found throughout the living world and is the most primal form of communication.
In animals, pheromones are consciously detected over considerable distances and serve at
times in place of spoken communication. They help animals mark territory, recognize mates,
and signal sexual interest. For example, female dogs in heat leave there pheromone and
can attract male dogs over a mile away.